AIR BRAKES PRACTICE TEST - NEW MEXICO
11.
Before leaving your vehicle unattended, you should:
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Remove the keys.
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Apply the parking brake.
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All of the above.
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12.
By pushing the trailer air supply control knob in, you:
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supply the tires with air.
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shut the air off and put on the trailer emergency brakes.
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supply the trailer with air.
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13.
If your vehicle is equipped with air brakes, loss of air pressure in the
emergency line causes:
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the trailer emergency brakes to come on.
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the trailer spring brakes to come on.
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the speed of your vehicle to increase.
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14.
If the low air pressure warning light comes on, you should:
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call for help.
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continue to drive normally.
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stop immediately.
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15.
Why must air tanks be drained?
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There might not be enough antifreeze in the system.
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The alcohol evaporator might stop working.
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The water can freeze in cold weather and cause brake failure.
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